CN112333125B

CN112333125B - Method and apparatus for signal processing

Info

Publication number: CN112333125B
Application number: CN202011119038.2A
Authority: CN
Inventors: 陈文洪
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2017-09-14
Filing date: 2017-09-14
Publication date: 2022-07-12
Anticipated expiration: 2037-09-14
Also published as: CN110603768A; AU2017431871A1; BR112019026784A2; ZA202000116B; EP4195574A1; CA3066297A1; CA3066297C; WO2019051717A1; EP3614602A1; CN112333125A; RU2750572C1; EP3614602A4; US11309949B2; SG11201911542TA; US20200145082A1

Abstract

The embodiment of the application relates to a method and a device for signal processing. The method comprises the following steps: determining a plurality of signals which are quasi co-located with a first port set in the first reference signal, wherein the first port set is used for sending or receiving the first reference signal and comprises at least one port; determining a target signal among the plurality of signals; and sending or receiving signals sent or received by the first reference signal through the first port set according to the quasi-homonymous relation between the first port set and the target signal. The signal processing method and device in the embodiment of the application can improve the channel estimation performance of the reference signal and also can determine the optimal transmission beam for the reference signal.

Description

Method and apparatus for signal processing

The application is a divisional application of an application with the application date of 2017, 9, month and 14, the application number of 201780090502.X (the international application number of PCT/CN2017/101747) and the name of 'method and device for signal processing'.

Technical Field

The present application relates to the field of communications, and in particular, to a method and apparatus for signal processing.

Background

In a New Radio (NR) system, a concept of Quasi Co-location (QCL) is introduced because downlink signals received by a terminal may come from different transmission and reception nodes (TRPs) or different panels (panels). If two downlink signals are transmitted from the same TRP or Panel, the two downlink signals may be considered QCL for the large-scale channel parameters, that is, it may be assumed that the large-scale channels experienced by the two downlink signals are similar or the same, so that the large-scale channel parameters obtained from one of the downlink signals may be used for channel estimation of the other downlink signal, and the channel estimation performance of the other downlink signal is improved.

On the other hand, different signals in the NR system may be transmitted using the same or different beams. If two signals are transmitted using the same beam or can be received using the same beam, the two signals may be considered QCL for the spatial reception parameters, i.e., it may be assumed that the transmission or reception beams they use are similar or identical, so that the transmission or reception beam of one signal can be used as the transmission or reception beam of the other signal, thereby improving the performance of transmission or reception.

However, if one signal and multiple signals are QCL at the same time, the terminal cannot know which signal's QCL relationship should be based on to assist in transmission or reception.

Disclosure of Invention

The application provides a method and a device for processing signals, which can improve the sending or receiving performance.

In a first aspect, a method of signal processing is provided, the method including: determining a plurality of signals which are quasi co-located with a first port set in the first reference signal, wherein the first port set is used for sending or receiving the first reference signal and comprises at least one port; determining a target signal among the plurality of signals; and sending or receiving signals sent or received by the first reference signal through the first port set according to the quasi-homonymous relation between the first port set and the target signal.

Therefore, according to the signal processing method in the embodiment of the present application, when determining that a reference signal and multiple signals are quasi co-located, a target signal may be determined among the multiple signals, and the reference signal is transmitted or received according to the quasi co-located relationship between the reference signal and the target signal, so as to improve the channel estimation performance of the reference signal, and also determine an optimal transmission beam for the reference signal.

With reference to the first aspect, in an implementation manner of the first aspect, the first reference signal is a downlink signal, and the multiple signals are downlink signals; alternatively, the first reference signal is an uplink signal, and the plurality of signals include an uplink signal and/or a downlink signal.

With reference to the first aspect and the foregoing implementation manner of the first aspect, in another implementation manner of the first aspect, the plurality of signals are different types of signals.

Optionally, the plurality of signals may also include the same type of signal. For example, the multiple signals may include two CSI-RSs, but the two CSI-RSs are used for different scenarios, one for beam management and one for CSI measurement. For another example, the multiple signals may also include two SRSs, and likewise, the two SRSs are used for different scenarios, where one is used for beam management and the other is used for CSI measurement.

With reference to the first aspect and the foregoing implementation manner of the first aspect, in another implementation manner of the first aspect, the first reference signal is one of a demodulation reference signal DMRS, a channel state information reference signal CSI-RS, a channel sounding reference signal SRS, and a phase tracking reference signal PTRS.

With reference to the first aspect and the foregoing implementation manner of the first aspect, in another implementation manner of the first aspect, the first port set includes a part of antenna ports or all antenna ports for transmitting or receiving the first reference signal.

It should be understood that when the first reference signal corresponds to only one port set, the first port set is all antenna ports of the first reference signal.

It should be understood that, when the first reference signal corresponds to a plurality of port sets, the first port set may be any one of the port sets, and the first port set includes a portion of antenna ports corresponding to the first reference signal.

With reference to the first aspect and the foregoing implementation manner of the first aspect, in another implementation manner of the first aspect, the determining multiple signals that are quasi-co-located with the first port set in the first reference signal includes: receiving quasi co-location indication information sent by network equipment; and determining a first signal which is quasi-co-located with the first port set according to the quasi-co-location indication information, wherein the first signal belongs to the plurality of signals.

It should be understood that the terminal device may receive one or more quasi co-location indication messages sent by the network device, and determine a corresponding signal according to each quasi co-location message.

With reference to the first aspect and the foregoing implementation manner of the first aspect, in another implementation manner of the first aspect, the determining a plurality of signals that are quasi-co-located with the first port set in the first reference signal includes: determining a second signal quasi co-located with the first port set according to the beam correspondence, the second signal belonging to the plurality of signals.

With reference to the first aspect and the foregoing implementation manner of the first aspect, in another implementation manner of the first aspect, the determining, according to beam correspondence, a second signal that is quasi-co-located with the first port set includes: and if the wave beam for sending or receiving the signals on the first port set is the same as the wave beam for sending or receiving the second signal, determining that the first port set and the second signal are quasi co-located on the spatial receiving parameters.

With reference to the first aspect and the foregoing implementation manner of the first aspect, in another implementation manner of the first aspect, a quasi co-location relationship between the first port set and at least two signals of the plurality of signals is for different channel large-scale parameters.

With reference to the first aspect and the foregoing implementation manner of the first aspect, in another implementation manner of the first aspect, the channel large-scale parameter includes: at least one of delay spread, doppler shift, average gain, average delay, angle of departure, angle of arrival, receive correlation, transmit correlation, and spatial receive parameters.

It should be appreciated that since the first port set of the first reference signal and the different ones of the plurality of signals may be quasi co-located for different large scale parameters, different target signals may also be determined for different channel large scale parameters.

With reference to the first aspect and the foregoing implementation manner of the first aspect, in another implementation manner of the first aspect, the determining a target signal in the plurality of signals includes: the target signal is determined based on the priority of each of the plurality of signals.

With reference to the first aspect and the foregoing implementation manner of the first aspect, in another implementation manner of the first aspect, the priority of the target signal is higher than the priority of a third signal in the plurality of signals. The third signal may be any one of the plurality of signals other than the target signal.

With reference to the first aspect and the foregoing implementation manner of the first aspect, in another implementation manner of the first aspect, the first port set and the target signal are quasi co-located for a target channel large-scale parameter, and the first port set and the third signal are quasi co-located for the target channel large-scale parameter.

With reference to the first aspect and the foregoing implementation manner of the first aspect, in another implementation manner of the first aspect, the determining a target signal in the plurality of signals includes: and determining the target signal according to at least one piece of quasi co-location indication information sent by the network equipment and a preset rule, wherein the at least one piece of quasi co-location indication information is used for determining the plurality of signals quasi co-located with the first port set.

With reference to the first aspect and the foregoing implementation manner of the first aspect, in another implementation manner of the first aspect, the determining the target signal according to a preset rule according to at least one piece of quasi-co-location indication information sent by a network device includes: determining last received quasi co-location indication information in the at least one quasi co-location indication information, the last received quasi co-location indication information being used for indicating a fourth signal quasi co-located with the first port set, the fourth signal belonging to the plurality of signals; the fourth signal is determined to be the target signal.

With reference to the first aspect and the foregoing implementation manner of the first aspect, in another implementation manner of the first aspect, the determining the target signal according to a preset rule according to at least one piece of quasi-co-location indication information sent by a network device includes: receiving destination standard co-location indication information sent by the network equipment through Downlink Control Information (DCI) signaling, wherein the destination standard co-location indication information belongs to the at least one quasi-co-location indication information; and determining a signal which is indicated by the target quasi co-address indication information and is quasi co-located with the first port set as the target signal.

With reference to the first aspect and the foregoing implementation manner of the first aspect, in another implementation manner of the first aspect, the determining a target signal in the plurality of signals includes: receiving indication information sent by a network device, wherein the indication information is used for indicating the target signal from the plurality of signals; and determining the target signal according to the indication information.

With reference to the first aspect and the foregoing implementation manner of the first aspect, in another implementation manner of the first aspect, the indication information is a higher layer signaling or DCI signaling.

With reference to the first aspect and the foregoing implementation manner of the first aspect, in another implementation manner of the first aspect, the determining a target signal in the plurality of signals includes: and determining the target signal according to the acquisition mode of each signal in the plurality of signals.

With reference to the first aspect and the foregoing implementation manner of the first aspect, in another implementation manner of the first aspect, the acquiring includes acquiring by quasi co-location indication information and acquiring according to beam correspondence.

With reference to the first aspect and the foregoing implementation manner, in another implementation manner of the first aspect, the quasi-homography of the first port set and a fifth signal in the first reference signal indicates that signals on the first port set and the fifth signal have the same or similar channel large-scale parameters, and the fifth signal is any one of the plurality of signals.

With reference to the first aspect and the foregoing implementation manner of the first aspect, in another implementation manner of the first aspect, the quasi-homonymy of the first port set and the fifth signal in the first reference signal indicates that a beam for transmitting or receiving signals on the first port set is the same as or similar to a beam for transmitting or receiving the fifth signal, and the fifth signal is any one of the multiple signals.

With reference to the first aspect and the foregoing implementation manner of the first aspect, in another implementation manner of the first aspect, the sending or receiving a signal, which is sent or received by the first reference signal through the first port set, according to a quasi co-location relationship between the first port set and the target signal, where the first port set and the target signal are quasi co-located with respect to a target channel large-scale parameter includes: and performing channel estimation on the first port set according to the target channel large-scale parameter obtained by receiving the target signal.

With reference to the first aspect and the foregoing implementation manner of the first aspect, in another implementation manner of the first aspect, the sending or receiving, according to a quasi co-location relationship between the first port set and the target signal, a signal sent or received by the first reference signal through the first port set includes: determining a target beam for transmitting or receiving the target signal; transmitting or receiving signals of the first reference signal on the first port set through the target beam.

Therefore, according to the signal processing method of the embodiment of the present application, when a reference signal and multiple signals are determined to be quasi co-located, a target signal may be determined in the multiple signals, where the reference signal and the multiple signals may be quasi co-located for different channel large-scale parameters, and for the different channel large-scale parameters, corresponding different target signals are determined in the multiple signals, and the reference signal is transmitted or received according to the quasi co-located relationship between the reference signal and each target signal, so as to improve the channel estimation performance of the reference signal, and also determine an optimal transmission beam for the reference signal.

In a second aspect, there is provided a signal processing apparatus configured to perform the method of the first aspect or any possible implementation manner of the first aspect. In particular, the apparatus comprises means for performing the method of the first aspect described above or any possible implementation manner of the first aspect.

In a third aspect, an apparatus for signal processing is provided, including: a storage unit for storing instructions and a processor for executing the instructions stored by the memory, and when the processor executes the instructions stored by the memory, the execution causes the processor to perform the first aspect or the method of any possible implementation of the first aspect.

In a fourth aspect, a computer-readable medium is provided for storing a computer program comprising instructions for performing the method of the first aspect or any possible implementation of the first aspect.

In a fifth aspect, there is provided a computer program product comprising instructions which, when executed by a computer, cause the computer to perform the method of signal processing of the first aspect or any possible implementation manner of the first aspect. In particular, the computer program product may be run on an apparatus for signal processing of the above-mentioned third aspect.

Drawings

Fig. 1 is a schematic flow diagram of a method of processing a signal according to an embodiment of the application.

Fig. 2 is a schematic block diagram of an apparatus for processing a signal according to an embodiment of the present application.

Fig. 3 is another schematic block diagram of an apparatus for processing a signal according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings.

The technical scheme of the embodiment of the application can be applied to various communication systems, for example: a Global System for Mobile Communication (GSMC) system, a Code Division Multiple Access (CDMA) system, a Wideband Code Division Multiple Access (WCDMA) system, a General Packet Radio Service (GPRS), a long term evolution (long term evolution, LTE) system, a Frequency Division Duplex (FDD) system, a Time Division Duplex (TDD Duplex) system, a Universal Mobile Telecommunications System (UMTS), a Worldwide Interoperability for Microwave Access (WiMAX) communication system, a future fifth generation (5G) system, or an NR system, etc.

Terminal equipment in the embodiments of the present application may refer to user equipment, access terminals, subscriber units, subscriber stations, mobile stations, remote terminals, mobile devices, user terminals, wireless communication devices, user agents, or user devices. The terminal device may also be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with a wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a future 5G network or a terminal device in a future evolved Public Land Mobile Network (PLMN), and the like, which is not limited in this embodiment of the present application.

The network device in this embodiment may be a device for communicating with a terminal device, where the network device may be a Base Transceiver Station (BTS) in a GSMC system or a CDMA system, a base station (NodeB, NB) in a WCDMA system, an evolved node b (eNB or eNodeB) in an LTE system, a wireless controller in a Cloud Radio Access Network (CRAN) scenario, or a relay station, an access point, a vehicle-mounted device, a wearable device, and a network device in a future 5G network or a network device in a future evolved PLMN network, and the like, and the embodiment of the present invention is not limited.

Fig. 1 shows a schematic flow diagram of a method 100 of signal processing according to an embodiment of the application, which method 100 may be performed by a terminal device. As shown in fig. 1, the method 100 includes: s110, determining a plurality of signals which are quasi-co-located with a first port set in the first reference signal, where the first port set is used for sending or receiving the first reference signal, and the first port set includes at least one port; s120, determining a target signal among the plurality of signals; s130, according to the quasi co-location relationship between the first port set and the target signal, sending or receiving a signal sent or received by the first reference signal through the first port set.

In S110, a plurality of signals quasi co-located with a first port set in the first reference signal are determined, where the first port set and the plurality of signals quasi co-located in the first reference signal may mean that each port set of at least one port set corresponding to the first port set and the plurality of signals is quasi co-located. The first reference signal may be an uplink signal or a downlink signal, the plurality of signals may include an uplink signal and/or a downlink signal, and the plurality of signals may include different types of signals or the same type of signals for different scenarios.

Optionally, the first reference signal may be an uplink signal or a downlink signal, for example, the first reference signal may be a demodulation reference signal (DMRS) or a channel state information reference signal (CSI-RS) or a channel Sounding Reference Signal (SRS) or a Phase Tracking Reference Signal (PTRS). Specifically, if the first reference signal is a DMRS, the first reference signal may be a DMRS of a Physical Broadcast Channel (PBCH), a physical uplink control signal (PUCCH), a Physical Downlink Control Channel (PDCCH), a Physical Uplink Shared Channel (PUSCH), or a Physical Downlink Shared Channel (PDSCH). If the first reference signal is a CSI-RS, the first reference signal may be a CSI-RS for beam management or a CSI-RS for Channel State Information (CSI) measurement. The first reference signal position SRS may be an SRS for beam management or an SRS for CSI measurement.

Optionally, the first reference signal may be an uplink signal, and the plurality of signals may include an uplink signal and/or a downlink signal. For example, the first reference signal is a downlink signal, and the plurality of signals may include one or more of a Synchronization Signal Block (SSB), a CSI-RS, a time-frequency Tracking Reference Signal (TRS), a PTRS, and a DMRS. For another example, if the first reference signal is an uplink signal, the plurality of signals may be at least one of SSB, CSI-RS, SRS, TRS, PTRS, and DMRS.

Optionally, the multiple signals may include different types of signals, or may include the same type of signals, for example, two CSI-RSs may be included, but the two CSI-RSs are used in different scenarios, where one is used for beam management and the other is used for CSI measurement. For another example, the multiple signals may also include two SRSs, and likewise, the two SRSs are used for different scenarios, where one is used for beam management and the other is used for CSI measurement.

In an embodiment of the invention, the first port set may be all or part of the ports of the first reference signal. In particular, the first reference signal may correspond to one or more port sets, each of which may include one or more ports. The first port set may be any port set corresponding to the first reference signal. For example, when the first reference signal corresponds to a port set, the port set includes all ports of the first reference signal. For another example, when the first reference signal corresponds to a plurality of port sets, the first port set may be any one of the port sets, that is, the first port set may include a part of ports of the first reference signal.

It should be understood that the terminal device determines a plurality of signals that are co-located with the first port set, which may be determined according to QCL indication information sent by the network device, or according to beam correlation (beam correlation). Optionally, a part of the signals may be determined by the QCL indication information, and a part of the signals may be determined by the beam correspondence.

Optionally, as an embodiment, the terminal device receives QCL indication information sent by the network device, and may determine, according to the QCL indication information, a first signal in the multiple signals, where the first signal may be any one of the multiple signals. Specifically, the terminal device receives QCL indication information sent by the network device, where the QCL indication information may be used to indicate a quasi co-location relationship between a first port set of a first reference signal and the first signal, and the terminal device determines the first signal according to the QCL indication information. The terminal device may receive one or more QCL indicator messages sent by the network device, and determine a signal that is co-located with the first port set according to each QCL indicator message in the at least one QCL indicator message, so that the terminal device may determine at least one of the plurality of signals according to the QCL indicator messages sent by the network device.

Optionally, as an embodiment, the terminal device may determine a second signal in the multiple signals according to the beam correspondence, where the second signal may be any one of the multiple signals. The terminal device determines that a beam for transmitting or receiving a second signal is the same as a beam for transmitting or receiving a signal on a first port set of a first reference signal, and may determine that the first port set of the first reference signal and a second signal are quasi co-located according to the beam correspondence, specifically, the first port set and the second signal are quasi co-located with respect to spatial reception parameters. The second signal may be any one of the plurality of signals, i.e., at least one of the plurality of signals may be determined according to beam correspondence.

In the embodiment of the present application, the quasi co-location relationship between the first port set of the first reference signal and the plurality of signals may be for the same or different channel large-scale parameters. For example, any two signals of the multiple signals are a first signal and a second signal, respectively, the first port set of the first reference signal is quasi co-located with the first signal with respect to the spatial reception parameter, and the first port set of the first reference signal is quasi co-located with the second signal with respect to the doppler shift and the doppler spread, which is not limited to this embodiment of the present application.

In the embodiment of the present application, the channel large-scale parameter may include at least one of the following parameters: delay spread (delay spread), doppler spread (doppler spread), doppler shift (doppler shift), average gain (average gain), average delay (average delay), departure angle (deviation of angle), arrival angle (arrival of angle), reception correlation (correlation of reception), transmission correlation (correlation of transmission), and spatial reception parameter (spatial reception parameter).

In S120, a target signal is determined among the plurality of signals. The terminal equipment can determine different target signals aiming at different channel large-scale parameters. Since the first set of ports of the first reference signal is quasi co-located with the plurality of signals, and can be quasi co-located with the plurality of signals for the same or different channel large scale parameters, a plurality of target signals can be determined in the plurality of signals, each target signal for a different channel large scale parameter. For example, the terminal device may determine a first target signal and a second target signal, where the first port set and the first target signal are quasi co-located for spatial reception parameters, and the first port set and the second target signal of the first reference signal are quasi co-located for doppler shift and doppler spread, which is not limited to this embodiment of the present application.

Optionally, as an embodiment, the terminal device may determine the target signal in the plurality of signals according to priorities of the plurality of signals. For example, the terminal device may determine the priority of each of the plurality of signals, and take the signal with the highest priority as the target signal, that is, for any one of the plurality of signals, for example, the third signal, the priority of the third signal is not higher than the target signal.

For another example, when there are at least two signals in the plurality of signals, and the first port set and the at least two signals are quasi co-located for the same channel large scale parameter, the signal with the highest priority is determined to be the target signal in the at least two signals, that is, for any one of the at least two signals, for example, the third signal, the priority of the third signal is not higher than the target signal.

It should be understood that different priorities may be set for different signals. For example, for downlink signals, the TRS may be set to have a higher priority than the CSI-RS, which may have a higher priority than the SSB. For an uplink signal, the priority of the SRS may be higher than that of the CSI-RS, and the priority of the CSI-RS may be higher than that of the PTRS, which is not limited in this embodiment of the present application.

Optionally, as an embodiment, the terminal device may determine the target signal in the multiple signals according to a preset rule according to the QCL indication information. Specifically, the terminal device may determine a target signal according to an order in which the QCL indication information is received. For example, the terminal device may receive at least one QCL indication information transmitted by the network device, from which the terminal device may determine at least one signal that is co-located with the first set of ports. The terminal device may use a signal indicated by the last QCL indication information as a target signal, or use a signal indicated by the first QCL indication information as a target signal, which is not limited to this embodiment of the present invention.

For example, the terminal device determines the last QCL indication information, the last QCL indication information indicates the fourth signal, and the fourth signal is the target signal

Optionally, as an embodiment, the terminal device may determine the target signaling according to the signaling carrying the QCL indication information. For example, the terminal device may use a signal indicated by QCL indication information received through Downlink Control Information (DCI) signaling as a target signal, which is not limited in this embodiment of the present application.

Optionally, as an embodiment, the terminal device may also determine the target signal according to indication information sent by the network device, where the indication information may be sent through higher layer signaling or DCI signaling. For example, the terminal device receives indication information sent by the network device through DCI signaling, where the indication information indicates that a sixth signal in the multiple signals has a quasi co-location relationship with the first port set, and then the terminal device determines the sixth signal as a target signal.

For another example, the network side indicates, in advance, a quasi co-location relationship between the first port set of the first reference signal of the terminal device and the sixth signal and the seventh signal through Radio Resource Control (RRC) signaling, and indicates, through DCI signaling, a quasi co-location relationship between the first port set of the first reference signal of the terminal device and the sixth reference signal therein, so that the terminal device may use the sixth signal as the target signal according to the RRC signal and the DCI signaling. In this case, the indication in the DCI may use only 1-bit information for indicating the quasi co-location relationship of the sixth signal or the seventh signal.

Optionally, as an embodiment, the terminal device may further determine the target signal according to an obtaining manner of the multiple signals. Specifically, the terminal device may obtain the plurality of signals in various ways, for example, the terminal device may determine one or more signals that are co-located with the first port set according to the QCL indication information sent by the network device; for another example, the terminal device may determine one or more signals that are co-located with the first set of ports based on the beam correspondence.

When signals obtained by different obtaining manners are included in the plurality of signals that are quasi-co-located with the first port set, a signal obtained by a certain obtaining manner may be taken as a target signal. For example, a signal determined by the QCL indication information may be prioritized as a target signal, and the embodiment of the present application is not limited thereto.

It will be appreciated that the terminal device may determine the target signal in one or more of the ways described above. For example, at least two signals may be determined from the plurality of signals in any one of the above manners, and a target signal of the at least two signals may be obtained in another manner. For another example, when the terminal device determines a plurality of target signals quasi co-located with the first port set for different channel large-scale parameters, a determination manner of each target signal may be the same or different, and the embodiment of the present application is not limited thereto.

In S130, according to the quasi co-location relationship between the first port set and the target signal, a signal transmitted or received by the first reference signal through the first port set is transmitted or received. In an embodiment of the present application, a quasi co-location relationship between the first port set and a fifth signal of the plurality of signals may represent: the signals on the first port set of the first reference signal and the large-scale parameter of the channel through which the fifth signal passes are similar or identical, or the beam used by the terminal device to transmit or receive the signals on the first port set of the first reference signal is similar or identical to the beam used to transmit or receive the fifth signal, where the fifth signal may be any one of the multiple signals.

Optionally, as an embodiment, the quasi co-location relationship between the first port set of the first reference signal and the target signal indicates that the large-scale parameter of the channel through which the signal on the first port set of the first reference signal and the target signal pass is similar or identical. Specifically, the terminal device may perform channel estimation on the first port set of the first reference signal according to a target channel large-scale parameter obtained by measuring the target signal.

Optionally, as an embodiment, the quasi-homonymous relationship between the first port set of the first reference signal and the target signal indicates that a beam used for transmitting or receiving a signal on the first port set of the first reference signal is similar to or the same as a beam used for transmitting or receiving the target signal. In particular, the terminal device may transmit or receive signals on the first set of ports for the first reference signal based on the beam employed to transmit or receive the target signal.

For example, a transmit beam for a target signal, a transmit beam for signals on the first set of ports for the first reference signal, or a receive beam for signals on the first set of ports for the first reference signal may be used. As another example, a receive beam for the target signal, a transmit beam for signals on the first port set as the first reference signal, or a receive beam for signals on the first port set as the first reference signal may be used.

It should be understood that, in the various embodiments of the present application, the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.

In addition, the term "and/or" herein is only one kind of association relationship describing the association object, and means that there may be three kinds of relationships, for example, a and/or B, and may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

The method of signal processing according to the embodiment of the present application is described in detail above with reference to fig. 1, and the apparatus of signal processing according to the embodiment of the present application will be described below with reference to fig. 2 to 3.

As shown in fig. 2, the apparatus 200 for signal processing according to the embodiment of the present application includes: a determination unit 210 and a transceiving unit 220.

Specifically, the determining unit 210 is configured to: determining a plurality of signals which are quasi co-located with a first port set in the first reference signal, wherein the first port set is used for sending or receiving the first reference signal and comprises at least one port; the determining unit 210 is further configured to: determining a target signal among the plurality of signals; the transceiving unit 220 is configured to: and sending or receiving signals sent or received by the first reference signal through the first port set according to the quasi-homonymous relation between the first port set and the target signal.

Therefore, in the signal processing apparatus according to the embodiment of the present application, when determining that a reference signal and multiple signals are quasi co-located, a target signal may be determined among the multiple signals, and the reference signal may be transmitted or received according to a quasi co-located relationship between the reference signal and the target signal, so as to improve channel estimation performance of the reference signal, and also determine an optimal transmission beam for the reference signal.

Optionally, the first reference signal is a downlink signal, and the plurality of signals are downlink signals; or, the first reference signal is an uplink signal, and the plurality of signals include an uplink signal and/or a downlink signal.

Optionally, the plurality of signals are different types of signals.

Optionally, the first reference signal is one of DMRS, CSI-RS, SRS, and PTRS.

Optionally, the first port set includes a part of antenna ports or all antenna ports for transmitting or receiving the first reference signal.

Optionally, the transceiver unit 220 is specifically configured to: receiving quasi co-location indication information sent by network equipment; the determining unit 210 is specifically configured to: and determining a first signal which is quasi-co-located with the first port set according to the quasi-co-location indication information, wherein the first signal belongs to the plurality of signals.

Optionally, the determining unit 210 is specifically configured to: determining a second signal quasi co-located with the first port set according to the beam correspondence, the second signal belonging to the plurality of signals.

Optionally, the determining unit 210 is specifically configured to: and if the wave beam for sending or receiving the signals on the first port set is the same as the wave beam for sending or receiving the second signal, determining that the first port set and the second signal are quasi co-located on the spatial receiving parameters.

Optionally, the quasi co-location relationship between the first set of ports and at least two of the plurality of signals is for different channel large scale parameters.

Optionally, the channel large-scale parameter includes: delay spread, doppler shift, average gain, average delay, angle of departure, angle of arrival, receive correlation, transmit correlation, spatial receive parameters.

Optionally, the determining unit 210 is specifically configured to: the target signal is determined based on the priority of each of the plurality of signals.

Optionally, the target signal has a higher priority than a third signal of the plurality of signals.

Optionally, the first port set and the target signal are quasi co-located for a target channel large-scale parameter, and the first port set and the third signal are quasi co-located for the target channel large-scale parameter.

Optionally, the determining unit 210 is specifically configured to: and determining the target signal according to at least one piece of quasi co-location indication information sent by the network equipment and a preset rule, wherein the at least one piece of quasi co-location indication information is used for determining the plurality of signals quasi co-located with the first port set.

Optionally, the determining unit 210 is specifically configured to: determining last received quasi co-location indication information in the at least one quasi co-location indication information, the last received quasi co-location indication information being used for indicating a fourth signal quasi co-located with the first port set, the fourth signal belonging to the plurality of signals; the fourth signal is determined to be the target signal.

Optionally, the transceiver unit 220 is specifically configured to: receiving destination standard co-location indication information sent by the network equipment through DCI signaling, wherein the destination standard co-location indication information belongs to the at least one quasi-co-location indication information; the determining unit 210 is specifically configured to: and determining a signal which is indicated by the target quasi co-address indication information and is quasi co-located with the first port set as the target signal.

Optionally, the transceiver unit 220 is specifically configured to: receiving indication information sent by a network device, wherein the indication information is used for indicating the target signal from the plurality of signals; the determining unit 210 is specifically configured to: and determining the target signal according to the indication information.

Optionally, the indication information is a higher layer signaling or DCI signaling.

Optionally, the determining unit 210 is specifically configured to: and determining the target signal according to the acquisition mode of each signal in the plurality of signals.

Optionally, the obtaining mode includes obtaining through quasi co-location indication information and obtaining according to beam correspondence.

Optionally, the quasi-co-location of the first port set and a fifth signal in the first reference signal indicates that signals on the first port set and the fifth signal have the same or similar channel large-scale parameters, or the quasi-co-location of the first port set and the fifth signal in the first reference signal indicates that a beam for transmitting or receiving signals on the first port set is the same or similar to a beam for transmitting or receiving the fifth signal, and the fifth signal is any one of the signals.

Optionally, the first port set and the target signal are quasi co-located with respect to a target channel large-scale parameter, and the determining unit 210 is specifically configured to: and performing channel estimation on the first port set according to the target channel large-scale parameter obtained by receiving the target signal.

Optionally, the determining unit 210 is specifically configured to: determining a target beam for transmitting or receiving the target signal; the transceiving unit 220 is specifically configured to: transmitting or receiving signals of the first reference signal on the first port set through the target beam.

Alternatively, the apparatus 200 may be a terminal device.

It should be understood that the apparatus 200 for signal processing according to the embodiment of the present application may correspond to performing the method 100 in the embodiment of the present application, and the above and other operations and/or functions of each unit in the apparatus 200 are respectively for implementing corresponding flows of the terminal devices of each method in fig. 1, and are not described herein again for brevity.

Therefore, the apparatus for signal processing according to the embodiment of the present application, when determining a reference signal and multiple signals quasi co-located, may determine a target signal in the multiple signals, where the reference signal and the multiple signals may be quasi co-located for different channel large-scale parameters, and for the different channel large-scale parameters, determine corresponding different target signals in the multiple signals, and transmit or receive the reference signal according to a quasi co-located relationship between the reference signal and each target signal, thereby improving channel estimation performance of the reference signal, and also determining an optimal transmit beam for the reference signal.

Fig. 3 shows a schematic block diagram of a terminal device 300 according to an embodiment of the application, as shown in fig. 3, the terminal device 300 comprising: the processor 310 and the transceiver 320, the processor 310 and the transceiver 320 are connected, and optionally, the terminal device 300 further includes a memory 330, and the memory 330 is connected to the processor 310. Wherein the processor 310, the memory 330 and the transceiver 320 communicate with each other to transmit and/or control data signals through the interconnection path, the memory 330 may be used to store instructions, the processor 310 is used to execute the instructions stored in the memory 330 to control the transceiver 320 to transmit information or signals, and the processor 310 is used to: determining a plurality of signals which are quasi co-located with a first port set in the first reference signal, wherein the first port set is used for sending or receiving the first reference signal and comprises at least one port; the processor 310 is further configured to: determining a target signal among the plurality of signals; the transceiver 320 is configured to: and sending or receiving signals sent or received by the first reference signal through the first port set according to the quasi-homonymous relation between the first port set and the target signal.

Therefore, the signal processing apparatus according to the embodiment of the present application, when determining that a reference signal and multiple signals are quasi co-located, may determine a target signal in the multiple signals, and transmit or receive the reference signal according to the quasi co-located relationship between the reference signal and the target signal, so as to improve the channel estimation performance of the reference signal, or determine an optimal transmission beam for the reference signal.

Optionally, the first reference signal is a downlink signal, and the multiple signals are downlink signals; alternatively, the first reference signal is an uplink signal, and the plurality of signals include an uplink signal and/or a downlink signal.

Optionally, the plurality of signals are different types of signals.

Optionally, the first reference signal is one of DMRS, CSI-RS, SRS, and PTRS.

Optionally, the transceiver 320 is configured to: receiving quasi co-location indication information sent by network equipment; the processor 310 is further configured to: and determining a first signal which is quasi-co-located with the first port set according to the quasi-co-location indication information, wherein the first signal belongs to the plurality of signals.

Optionally, the processor 310 is further configured to: determining a second signal quasi co-located with the first port set according to the beam correspondence, the second signal belonging to the plurality of signals.

Optionally, the processor 310 is further configured to: and if the wave beam for sending or receiving the signals on the first port set is the same as the wave beam for sending or receiving the second signal, determining that the first port set and the second signal are quasi co-located on the spatial receiving parameters.

Optionally, the processor 310 is further configured to: the target signal is determined based on the priority of each of the plurality of signals.

Optionally, the first port set and the target signal are quasi co-located for a target channel large scale parameter, and the first port set and the third signal are quasi co-located for the target channel large scale parameter.

Optionally, the processor 310 is further configured to: and determining the target signal according to a preset rule according to at least one quasi co-location indication message sent by the network equipment, wherein the at least one quasi co-location indication message is used for determining the plurality of signals quasi co-located with the first port set.

Optionally, the processor 310 is further configured to: determining last received quasi co-location indication information in the at least one quasi co-location indication information, the last received quasi co-location indication information being used for indicating a fourth signal quasi co-located with the first port set, the fourth signal belonging to the plurality of signals; the fourth signal is determined to be the target signal.

Optionally, the transceiver 320 is configured to: receiving destination standard co-location indication information sent by the network equipment through DCI signaling, wherein the destination standard co-location indication information belongs to the at least one quasi-co-location indication information; the processor 310 is further configured to: and determining a signal which is indicated by the target quasi co-address indication information and is quasi co-located with the first port set as the target signal.

Optionally, the transceiver 320 is configured to: receiving indication information sent by a network device, wherein the indication information is used for indicating the target signal from the plurality of signals; the processor 310 is further configured to: and determining the target signal according to the indication information.

Optionally, the processor 310 is further configured to: and determining the target signal according to the acquisition mode of each signal in the plurality of signals.

Optionally, the first port set is quasi co-located with the target signal for a target channel large-scale parameter, and the processor 310 is further configured to: and performing channel estimation on the first port set according to the target channel large-scale parameter obtained by receiving the target signal.

Optionally, the processor 310 is further configured to: determining a target beam for transmitting or receiving the target signal; the transceiver 320 is configured to: transmitting or receiving signals of the first reference signal on the first port set through the target beam.

Alternatively, the apparatus 300 may be a terminal device.

It should be understood that the apparatus 300 for signal processing according to the embodiment of the present application may correspond to the apparatus 200 for signal processing in the embodiment of the present application, and may correspond to a terminal device for performing the method 100 according to the embodiment of the present application, and the above and other operations and/or functions of each unit in the apparatus 300 are respectively for implementing corresponding flows of the terminal device in each method in fig. 1, and are not described herein again for brevity.

Therefore, the apparatus for signal processing according to the embodiment of the present application determines a reference signal and multiple signals quasi-co-located, and may determine a target signal in the multiple signals, where the reference signal and the multiple signals may be quasi-co-located for different channel large-scale parameters, and determine corresponding different target signals in the multiple signals for the different channel large-scale parameters, and transmit or receive the reference signal according to the quasi-co-located relationship between the reference signal and each target signal, thereby improving the channel estimation performance of the reference signal, and also determining an optimal transmit beam for the reference signal.

It should be noted that the above method embodiments of the present application may be applied to or implemented by a processor. The processor may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method embodiments may be performed by integrated logic circuits of hardware in a processor or instructions in the form of software. The processor may be a general purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, or discrete hardware components. The various methods, steps, and logic blocks disclosed in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in a memory, and a processor reads information in the memory and completes the steps of the method in combination with hardware of the processor.

It will be appreciated that the memory in the embodiments of the subject application can be either volatile memory or nonvolatile memory, or can include both volatile and nonvolatile memory. The non-volatile memory may be a read-only memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash memory. Volatile memory can be Random Access Memory (RAM), which acts as external cache memory. By way of example, but not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic Random Access Memory (SDRAM), double data rate SDRAM, enhanced SDRAM, SLDRAM, Synchronous Link DRAM (SLDRAM), and direct rambus RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.

The functions may be stored in a computer-readable storage medium if they are implemented in the form of software functional units and sold or used as separate products. Based on such understanding, the technical solutions of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A method of signal processing, comprising:

determining a plurality of signals which are quasi-co-located with a first port set in a first reference signal, wherein the first port set is used for sending or receiving the first reference signal, the first port set comprises all antenna ports used for sending or receiving the first reference signal, and the plurality of signals are different types of signals;

determining a target signal among the plurality of signals;

transmitting or receiving signals transmitted or received by the first reference signal through the first port set according to a quasi-homonymous relation between the first port set and the target signal,

the first reference signal and any one of the plurality of signals have the same or similar channel large-scale parameter, or a beam for transmitting or receiving the first reference signal is the same or similar to a beam for transmitting or receiving any one of the plurality of signals.

2. The method of claim 1, wherein the first reference signal is a downlink signal and the plurality of signals are downlink signals; alternatively, the first and second electrodes may be,

the first reference signal is an uplink signal, and the plurality of signals include an uplink signal and/or a downlink signal.

3. The method of claim 1, wherein the first reference signal is one of a demodulation reference signal (DMRS), a channel state information reference signal (CSI-RS), a channel Sounding Reference Signal (SRS), and a Phase Tracking Reference Signal (PTRS).

4. The method of claim 1, wherein determining a plurality of signals that are co-located with a first set of ports in the first reference signal comprises:

receiving quasi co-location indication information sent by network equipment;

and determining a first signal which is quasi-co-located with the first port set according to the quasi-co-location indication information, wherein the first signal belongs to the plurality of signals.

5. The method of any one of claims 1 to 4, wherein said determining a target signal among said plurality of signals comprises:

and determining the target signal according to at least one piece of quasi-co-location indication information sent by the network equipment and a preset rule, wherein the at least one piece of quasi-co-location indication information is used for determining the plurality of signals quasi-co-located with the first port set.

6. The method of claim 1, wherein the first set of ports is quasi co-located with the target signal for a target channel large scale parameter,

the sending or receiving signals sent or received by the first reference signal through the first port set according to the quasi co-location relationship between the first port set and the target signal includes:

and performing channel estimation on the first port set according to the target channel large-scale parameter obtained by receiving the target signal.

7. The method of claim 1, wherein the transmitting or receiving the signal transmitted or received by the first reference signal through the first port set according to a quasi co-location relationship between the first port set and the target signal comprises:

determining a target beam for transmitting or receiving the target signal;

transmitting or receiving signals of the first reference signal on the first set of ports through the target beam.

8. An apparatus for signal processing, comprising:

a determining unit, configured to determine multiple signals that are quasi co-located with a first port set in a first reference signal, where the first port set is used to transmit or receive the first reference signal, the first port set includes all antenna ports used to transmit or receive the first reference signal, and the multiple signals are different types of signals;

the determination unit is further configured to: determining a target signal among the plurality of signals;

a transceiving unit, configured to send or receive a signal sent or received by the first reference signal through the first port set according to a quasi co-location relationship between the first port set and the target signal,

9. The apparatus of claim 8, wherein the first reference signal is a downlink signal and the plurality of signals are downlink signals; alternatively, the first and second electrodes may be,

10. The apparatus of claim 8, wherein the first reference signal is one of a demodulation reference signal (DMRS), a channel state information reference signal (CSI-RS), a channel Sounding Reference Signal (SRS), and a Phase Tracking Reference Signal (PTRS).

11. The apparatus according to claim 8, wherein the transceiver unit is specifically configured to:

receiving quasi co-location indication information sent by network equipment;

the determining unit is specifically configured to:

12. The apparatus according to any one of claims 8 to 11, wherein the determining unit is specifically configured to:

and determining the target signal according to at least one quasi co-location indication message sent by the network equipment and a preset rule, wherein the at least one quasi co-location indication message is used for determining the plurality of signals quasi co-located with the first port set.

13. The apparatus of claim 8, wherein the first set of ports is quasi co-located with the target signal for a target channel large scale parameter,

the determining unit is specifically configured to:

14. The apparatus according to claim 8, wherein the determining unit is specifically configured to:

determining a target beam for transmitting or receiving the target signal;

the transceiver unit is specifically configured to:

15. An apparatus for signal processing, comprising:

a storage unit; and

a processor for processing the received data, wherein the processor is used for processing the received data,

the storage unit is for storing instructions, the processor is for executing the memory-stored instructions, and when the processor executes the memory-stored instructions, the execution causes the processor to perform the method of signal processing according to any one of claims 1-7.

16. A computer-readable medium for storing a computer program, characterized in that the computer program comprises instructions for performing the method of signal processing according to any of claims 1-7.